/* ===== Variables CSS ===== */
:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.header {
    background: var(--dark-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.price-ticker {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.5rem 1rem;
    background: var(--dark-bg);
    border-radius: 8px;
}

.price-ticker .label {
    font-weight: 600;
    color: var(--text-secondary);
}

.price-ticker .price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-ticker .change {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
}

.price-ticker .change.positive {
    background: var(--success-color);
    color: white;
}

.price-ticker .change.negative {
    background: var(--danger-color);
    color: white;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--warning-color);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--success-color);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== Navigation ===== */
.nav {
    background: var(--dark-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 73px;
    z-index: 99;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

/* ===== Main Content ===== */
.main {
    padding: 2rem 0 4rem;
    min-height: calc(100vh - 200px);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Grid System ===== */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
}

.grid-2-1 {
    grid-template-columns: 2fr 1fr;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.mt-2 {
    margin-top: 1.5rem;
}

/* ===== Cards ===== */
.card {
    background: var(--dark-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header i {
    color: var(--primary-color);
}

.card-body {
    padding: 1.5rem;
}

/* ===== Signal Card ===== */
.signal-card {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

.signal-direction {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.signal-direction i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.signal-direction span {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.signal-direction.buy i {
    color: var(--success-color);
}

.signal-direction.sell i {
    color: var(--danger-color);
}

.signal-direction.neutral i {
    color: var(--text-secondary);
}

.signal-probability {
    margin-bottom: 1.5rem;
}

.probability-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.probability-value {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
}

.probability-bar {
    height: 8px;
    background: var(--dark-bg);
    border-radius: 4px;
    overflow: hidden;
}

.probability-fill {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.5s;
}

.signal-levels {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.level-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--dark-bg);
    border-radius: 6px;
}

.level-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.level-value {
    font-weight: 700;
    color: var(--text-primary);
}

.level-value.tp {
    color: var(--success-color);
}

.level-value.sl {
    color: var(--danger-color);
}

/* ===== SMA Status ===== */
.sma-status {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sma-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 6px;
}

.sma-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.sma-value {
    font-weight: 700;
    color: var(--primary-color);
}

.sma-crossover {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 6px;
    text-align: center;
    justify-content: center;
}

.sma-crossover.bullish {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.sma-crossover.bearish {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

/* ===== Fibonacci Levels ===== */
.fibo-levels {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.fibo-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--dark-bg);
    border-radius: 6px;
    font-size: 0.875rem;
}

.fibo-label {
    color: var(--text-secondary);
}

.fibo-value {
    font-weight: 600;
    color: var(--warning-color);
}

/* ===== Stat Cards ===== */
.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--dark-card);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 12px;
    font-size: 1.5rem;
    color: white;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* ===== Chart ===== */
.chart-card {
    min-height: 600px;
}

.chart-controls {
    display: flex;
    gap: 0.5rem;
}

.tradingview-widget-container {
    width: 100%;
    height: 600px;
}

#tradingview_widget {
    width: 100%;
    height: 100%;
}

/* ===== Buttons ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--dark-bg);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-danger {
    background: var(--gradient-danger);
    color: white;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* ===== Table ===== */
.table-responsive {
    overflow-x: auto;
}

.trades-table {
    width: 100%;
    border-collapse: collapse;
}

.trades-table th,
.trades-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.trades-table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--dark-bg);
}

.trades-table tbody tr {
    transition: background 0.3s;
}

.trades-table tbody tr:hover {
    background: var(--dark-bg);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-buy {
    background: var(--success-color);
    color: white;
}

.badge-sell {
    background: var(--danger-color);
    color: white;
}

.text-success {
    color: var(--success-color);
}

.text-danger {
    color: var(--danger-color);
}

/* ===== Statistics ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-item {
    padding: 1.5rem;
    background: var(--dark-bg);
    border-radius: 8px;
    text-align: center;
}

.stat-item-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-item-value {
    font-size: 1.75rem;
    font-weight: 700;
}

/* ===== Alerts ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-left: 4px solid var(--info-color);
    color: var(--info-color);
}

.alert i {
    font-size: 1.25rem;
    margin-top: 2px;
}

.alert a {
    color: var(--info-color);
    text-decoration: underline;
}

/* ===== Instructions List ===== */
.instructions-list {
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.instructions-list li {
    margin-bottom: 0.5rem;
}

.instructions-list a {
    color: var(--primary-color);
    text-decoration: none;
}

.instructions-list a:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .grid-2-1 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-list {
        flex-wrap: wrap;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .logo h1 {
        font-size: 1.25rem;
    }

    .price-ticker {
        flex-direction: column;
        gap: 0.5rem;
    }
}